Okla. Stat. tit. 74 § 321
Upon receiving any such application for release of an option to purchase, the Office of Management and Enterprise Services shall make a thorough investigation for the purpose of determining whether the state has, or claims, any present interest in such land by reason of such option contract. If after such investigation said Office determines that the state has no present interest in such land, a release and disclaimer shall be executed by said Office. In case of doubt, the Office shall submit the option and all relevant facts to the Attorney General for his opinion as to the interest of the state in said land. Any release and disclaimer executed by the Office of Management and Enterprise Services shall be filed for record in the office of the county clerk of the county where the land is located without charge.
Okla. Stat. tit. 74, § 321